15. Solution: Handling Input Errors

Here is our solution for what the revised party_planner function on the previous page could look like, using a try-except block:
```python
def party_planner(cookies, people):
leftovers = None
num_each = None

try:
    num_each = cookies // people
    leftovers = cookies % people
except ZeroDivisionError:
    print("Oops, you entered 0 people will be attending.")
    print("Please enter a good number of people for a party.")

return(num_each, leftovers)```